• ⚠️ Note
• Table of contents
• Transition Script
• Structural changes & Deprecations
• Removed features
• asyncio
• Refinement of the public API
• __slots__
• Overall architecture
• Changes for specific modules, classes & functions
• telegram
• Several classes
• Networking backend
• telegram.ChatAction
• telegram.constants
• telegram.Bot
• telegram.EncryptedPassportElement
• telegram.error
• telegram.File
• telegram.ForceReply
• telegram.InlineQuery.answer
• telegram.ParseMode
• telegram.PassportFile
• telegram.ReplyMarkup
• telegram.VideoChat
• telegram.ext
• BasePersistence
• asyncio
• Data must be copyable
• Persisting telegram.Bot instances.
• Return value of get_{user, chat}_data
• Abstract methods
• store_*_data
• CallbackContext
• ConversationHandler
• filters
• JobQueue
• New arguments {chat, user}_id
• JobQueue.run_monthly
• Job
• Removed the attribute job_queue
• PicklePersistence
• Updater
• Application/Dispatcher
• user/chat_data